Muscles2 Flashcards
Biceps brachii
Flexes:
Extends:
Flexes the elbow
Extends the shoulder
Biceps brachii
Origin
Insertion
Origin- medial side of distal scapula
Insertion- radius and ulna
Triceps
Extends
Extends elbow
Triceps
Origin
Insertion
Origin- lateral side of distal scapula and proximal humerus
Insertion- olecrannon of ulna
Infraspinatus
Abduct and flex
Abduct and flex the shoulder
Infraspinatus
Origin
Insertion
Origin: caudal side of lateral scapula
Insertion: greater tubercle of humerus
Damage to the infraspinatus leads to
“Sweeney” (when a harness doesn’t fit properly, damages the infraspinatus )
Chest muscles
Pectorals
Pectorals
Adduct the
Thoracic limb
Pectorals
Origin
Insertion
Origin: sternum
Insertion: humerus
Caudal thigh muscles (semimembranosus and semitendinosus)
Extend
Flex
Extend the hip
Flex the stifle
Caudal thigh muscles (semimembranosus and semitendinosus)
Origin
Insertion
Origin: tuber ischii
Insertion: proximal tibia
Quadriceps femoris
Cranial thigh muscles
Extend the
Extend the stifle
Quadriceps femoris
Origin
Insertion
Origin : femur
Insertion: tibia
Rump muscles
Gluteal muscles
Gluteal muscles
Extend the
Abduct the
Extend the hip
abduct the limb